obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
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8 files changed, 363 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/1.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/1.cc
new file mode 100644
index 000000000..52122415e
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/1.cc
@@ -0,0 +1,49 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2007-11-01  Paolo Carlini  <pcarlini@suse.de
+
+// Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::pair<const int&, const int&> z = std::minmax(1, 2);
+  std::pair<const int&, const int&> w = std::minmax(4, 3);
+  VERIFY( z.first == 1 );
+  VERIFY( z.second == 2 );
+  VERIFY( w.first == 3 );
+  VERIFY( w.second == 4 );
+
+  std::pair<const int&, const int&> zc = std::minmax(1, 2, std::greater<int>());
+  std::pair<const int&, const int&> wc = std::minmax(4, 3, std::greater<int>());
+  VERIFY( zc.first == 2 );
+  VERIFY( zc.second == 1 );
+  VERIFY( wc.first == 4 );
+  VERIFY( wc.second == 3 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/2.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/2.cc
new file mode 100644
index 000000000..6c4200eef
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/2.cc
@@ -0,0 +1,61 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2008-09-16  Chris Fairles  <chris.fairles@gmail.com>
+
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::pair<int, int> z = std::minmax({1, 2, 3});
+  std::pair<int, int> w = std::minmax({4, 3, 5, 4});
+  std::pair<int, int> y = std::minmax({4, 5, 3, 7, 3});
+  VERIFY( z.first == 1 );
+  VERIFY( z.second == 3 );
+  VERIFY( w.first == 3 );
+  VERIFY( w.second == 5 );
+  VERIFY( y.first == 3 );
+  VERIFY( y.second == 7 );
+
+  std::pair<int, int> zc =
+    std::minmax({1, 2, 3}, std::greater<int>());
+
+  std::pair<int, int> wc =
+    std::minmax({4, 3, 5, 4}, std::greater<int>());
+
+  std::pair<int, int> yc =
+    std::minmax({4, 5, 3, 7, 3}, std::greater<int>());
+
+  VERIFY( zc.first == 3 );
+  VERIFY( zc.second == 1 );
+  VERIFY( wc.first == 5 );
+  VERIFY( wc.second == 3 );
+  VERIFY( yc.first == 7 );
+  VERIFY( yc.second == 3 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
new file mode 100644
index 000000000..0e99d51d2
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
@@ -0,0 +1,55 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2008-09-16  Chris Fairles  <chris.fairles@gmail.com>
+
+// Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_hooks.h>
+
+struct compare_counter
+  : std::binary_function<int, int, bool>
+{
+  static int count;
+  
+  bool operator()(int a, int b) const
+  {
+    ++count;
+    return a < b;
+  }
+};
+
+int compare_counter::count = 0;
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::minmax({1, 2, 3, 4, 5, 6, 7, 8}, compare_counter());
+
+  // If N is the number of arguments in the minmax function call, 
+  // 25.3.7 specifies that at most 3N/2 comparisons are allowed.
+  VERIFY(compare_counter::count <= (3 * 8 / 2));
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/37547.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/37547.cc
new file mode 100644
index 000000000..1c7748bfc
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/37547.cc
@@ -0,0 +1,39 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <algorithm>
+#include <vector>
+#include <testsuite_hooks.h>
+
+// libstdc++/37547
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::vector<int> v{1,2,3,4,5};
+
+  auto p = std::minmax({v});
+  VERIFY ( p.first == v );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/2.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/2.cc
new file mode 100644
index 000000000..c20ae4bb8
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/2.cc
@@ -0,0 +1,41 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2007-11-01  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_api.h>
+
+namespace std
+{
+  using __gnu_test::NonDefaultConstructible;
+
+  typedef NonDefaultConstructible 		value_type;
+  typedef value_type* 		iterator_type;
+  typedef std::less<value_type> compare_type;
+
+  template pair<const value_type&, const value_type&>
+    minmax(const value_type&, const value_type&);
+  template pair<const value_type&, const value_type&>
+    minmax(const value_type&, const value_type&, compare_type);
+}
+
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/3.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/3.cc
new file mode 100644
index 000000000..d133f8cbe
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/3.cc
@@ -0,0 +1,39 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 2008-09-16  Chris Fairles  <chris.fairles@gmail.com>
+
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_api.h>
+
+namespace std
+{
+  using __gnu_test::NonDefaultConstructible;
+
+  typedef NonDefaultConstructible 		value_type;
+  typedef value_type* 		iterator_type;
+  typedef std::less<value_type> compare_type;
+
+  template pair<value_type, value_type> minmax(initializer_list<value_type>);
+  template pair<value_type, value_type> minmax(initializer_list<value_type>,
+					       compare_type);
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod.cc
new file mode 100644
index 000000000..8f6da5dcc
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod.cc
@@ -0,0 +1,40 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2007-11-01  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+#include <algorithm>
+#include <testsuite_character.h>
+
+namespace std
+{
+  using __gnu_test::pod_int;
+
+  typedef pod_int 		value_type;
+  typedef value_type* 		iterator_type;
+  typedef std::less<value_type> compare_type;
+
+  template pair<const value_type&, const value_type&>
+    minmax(const value_type&, const value_type&);
+  template pair<const value_type&, const value_type&>
+    minmax(const value_type&, const value_type&, compare_type);
+}
+
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod2.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod2.cc
new file mode 100644
index 000000000..af579651a
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/requirements/explicit_instantiation/pod2.cc
@@ -0,0 +1,39 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 2008-09-16  Chris Fairles  <chris.fairles@gmail.com>
+
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_character.h>
+
+namespace std
+{
+  using __gnu_test::pod_int;
+
+  typedef pod_int 		value_type;
+  typedef value_type* 		iterator_type;
+  typedef std::less<value_type> compare_type;
+
+  template pair<value_type, value_type> minmax(initializer_list<value_type>);
+  template pair<value_type, value_type> minmax(initializer_list<value_type>,
+					       compare_type);
+}